TuBiPORA. ZOOPHYTA. CELLULIFERA. 529 



EXTINCT SPECIES. 



1. M. ramosa. — Dichotomously branched,; cylindrical ; pores visible by a 

 lens, of unequal size. — Park. Org. Rem. ii. ^]. t. viii. f. S.—Limeslmie, Wilt- 

 shire. 



TUBIPORADiE. 



Gen. TUBIPORA. — Tubes cylindrical, erect, parallel, sepa- 

 rate, connected by transverse plates or tubes. 



1. T. catenata Tubes approximate, each emitting from its sides distant, 



horizontal, tubular branches, which enter the surrounduig tubes, and unite 

 the whole into one irregularly formed mass. — Mart. Pet. Derb. t. xlii. Park. 

 Org. Rem. ii. 13, t. i. f. l.— Carboniferous Limestone. 



2. T. sirues. — Tubes diverging, bending, united by horizontal tubular 

 branches. — Park. Org. Rem. ii. 16, t. ii. f 1. — Oolite. 



3. T. ramulosa. — Tubes connected by oblique, dichotoraous rahiifications. 

 Park. ii. 18, t. iii. f. 1. — Carboniferous Limes tane. 



4. T. radiatm, — Tubes distant, erect, parallel, striated, and connected by 

 transverse plates, the surface of which is marked with radiated undulated 

 striae. — Mart. Pet. Derb. t. 18. — Carboniferous Limestone. 



Gen. FAVOSITES. — Massive, consisting- of ascending, pa- 

 rallel, adjacent, prismatical tubes. 



1. F. septosus Hemispherical, neai-ly 2 inches in diameter, the tubes ra- 

 diating from the centre irregularly, divided internally by simple transverse 

 plates — Carboniferous Limestone. 



2. F. depressus — An extended plate, about an inch in height, tubes verti- 

 cal, rather smaller than the preceding, and less divided.— Carboniferous Lime- 

 stone. 



Gen. XL VII. TUBULIPORA.— Branched, ceUs cylindrical, 

 tubular. 



119. T. serpens. — Stem flat, branches narrow, ascending, 

 striated on the back ; the tubes disposed on both sides of the 

 front, and united in transverse rows. 



Eschara millepora, Ellis, Coral. 74, t. xxvii. f. E — Tubipora serpens, 



Linn. Syst. i. 1271 Millepora liliacea. Pall. El. 248 — Millepora tu- 



bulosa, Sol. Ell. Zooph. 136 On corallines, common. 



The whole mass seldom exceeds half an inch in length, or the tenth of an inch 

 in breadth ; the tubes, though usually united at the base, have the orifices 

 free, and even in some cases are disjoined throughout ; a groove, destitute of 

 cells, winds along the middle of the stem and branches ; the colour when re- 

 cent has a purplish tinge. 



120. T. truncata. — Stem round, branched, ending with en- 



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